diff options
Diffstat (limited to 'drivers/staging/lttng/instrumentation/events/lttng-module/sched.h')
-rw-r--r-- | drivers/staging/lttng/instrumentation/events/lttng-module/sched.h | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/drivers/staging/lttng/instrumentation/events/lttng-module/sched.h b/drivers/staging/lttng/instrumentation/events/lttng-module/sched.h new file mode 100644 index 00000000000..33f69213e42 --- /dev/null +++ b/drivers/staging/lttng/instrumentation/events/lttng-module/sched.h | |||
@@ -0,0 +1,400 @@ | |||
1 | #undef TRACE_SYSTEM | ||
2 | #define TRACE_SYSTEM sched | ||
3 | |||
4 | #if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ) | ||
5 | #define _TRACE_SCHED_H | ||
6 | |||
7 | #include <linux/sched.h> | ||
8 | #include <linux/tracepoint.h> | ||
9 | |||
10 | #ifndef _TRACE_SCHED_DEF_ | ||
11 | #define _TRACE_SCHED_DEF_ | ||
12 | |||
13 | static inline long __trace_sched_switch_state(struct task_struct *p) | ||
14 | { | ||
15 | long state = p->state; | ||
16 | |||
17 | #ifdef CONFIG_PREEMPT | ||
18 | /* | ||
19 | * For all intents and purposes a preempted task is a running task. | ||
20 | */ | ||
21 | if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE) | ||
22 | state = TASK_RUNNING; | ||
23 | #endif | ||
24 | |||
25 | return state; | ||
26 | } | ||
27 | |||
28 | #endif /* _TRACE_SCHED_DEF_ */ | ||
29 | |||
30 | /* | ||
31 | * Tracepoint for calling kthread_stop, performed to end a kthread: | ||
32 | */ | ||
33 | TRACE_EVENT(sched_kthread_stop, | ||
34 | |||
35 | TP_PROTO(struct task_struct *t), | ||
36 | |||
37 | TP_ARGS(t), | ||
38 | |||
39 | TP_STRUCT__entry( | ||
40 | __array_text( char, comm, TASK_COMM_LEN ) | ||
41 | __field( pid_t, tid ) | ||
42 | ), | ||
43 | |||
44 | TP_fast_assign( | ||
45 | tp_memcpy(comm, t->comm, TASK_COMM_LEN) | ||
46 | tp_assign(tid, t->pid) | ||
47 | ), | ||
48 | |||
49 | TP_printk("comm=%s tid=%d", __entry->comm, __entry->tid) | ||
50 | ) | ||
51 | |||
52 | /* | ||
53 | * Tracepoint for the return value of the kthread stopping: | ||
54 | */ | ||
55 | TRACE_EVENT(sched_kthread_stop_ret, | ||
56 | |||
57 | TP_PROTO(int ret), | ||
58 | |||
59 | TP_ARGS(ret), | ||
60 | |||
61 | TP_STRUCT__entry( | ||
62 | __field( int, ret ) | ||
63 | ), | ||
64 | |||
65 | TP_fast_assign( | ||
66 | tp_assign(ret, ret) | ||
67 | ), | ||
68 | |||
69 | TP_printk("ret=%d", __entry->ret) | ||
70 | ) | ||
71 | |||
72 | /* | ||
73 | * Tracepoint for waking up a task: | ||
74 | */ | ||
75 | DECLARE_EVENT_CLASS(sched_wakeup_template, | ||
76 | |||
77 | TP_PROTO(struct task_struct *p, int success), | ||
78 | |||
79 | TP_ARGS(p, success), | ||
80 | |||
81 | TP_STRUCT__entry( | ||
82 | __array_text( char, comm, TASK_COMM_LEN ) | ||
83 | __field( pid_t, tid ) | ||
84 | __field( int, prio ) | ||
85 | __field( int, success ) | ||
86 | __field( int, target_cpu ) | ||
87 | ), | ||
88 | |||
89 | TP_fast_assign( | ||
90 | tp_memcpy(comm, p->comm, TASK_COMM_LEN) | ||
91 | tp_assign(tid, p->pid) | ||
92 | tp_assign(prio, p->prio) | ||
93 | tp_assign(success, success) | ||
94 | tp_assign(target_cpu, task_cpu(p)) | ||
95 | ), | ||
96 | |||
97 | TP_printk("comm=%s tid=%d prio=%d success=%d target_cpu=%03d", | ||
98 | __entry->comm, __entry->tid, __entry->prio, | ||
99 | __entry->success, __entry->target_cpu) | ||
100 | ) | ||
101 | |||
102 | DEFINE_EVENT(sched_wakeup_template, sched_wakeup, | ||
103 | TP_PROTO(struct task_struct *p, int success), | ||
104 | TP_ARGS(p, success)) | ||
105 | |||
106 | /* | ||
107 | * Tracepoint for waking up a new task: | ||
108 | */ | ||
109 | DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new, | ||
110 | TP_PROTO(struct task_struct *p, int success), | ||
111 | TP_ARGS(p, success)) | ||
112 | |||
113 | /* | ||
114 | * Tracepoint for task switches, performed by the scheduler: | ||
115 | */ | ||
116 | TRACE_EVENT(sched_switch, | ||
117 | |||
118 | TP_PROTO(struct task_struct *prev, | ||
119 | struct task_struct *next), | ||
120 | |||
121 | TP_ARGS(prev, next), | ||
122 | |||
123 | TP_STRUCT__entry( | ||
124 | __array_text( char, prev_comm, TASK_COMM_LEN ) | ||
125 | __field( pid_t, prev_tid ) | ||
126 | __field( int, prev_prio ) | ||
127 | __field( long, prev_state ) | ||
128 | __array_text( char, next_comm, TASK_COMM_LEN ) | ||
129 | __field( pid_t, next_tid ) | ||
130 | __field( int, next_prio ) | ||
131 | ), | ||
132 | |||
133 | TP_fast_assign( | ||
134 | tp_memcpy(next_comm, next->comm, TASK_COMM_LEN) | ||
135 | tp_assign(prev_tid, prev->pid) | ||
136 | tp_assign(prev_prio, prev->prio - MAX_RT_PRIO) | ||
137 | tp_assign(prev_state, __trace_sched_switch_state(prev)) | ||
138 | tp_memcpy(prev_comm, prev->comm, TASK_COMM_LEN) | ||
139 | tp_assign(next_tid, next->pid) | ||
140 | tp_assign(next_prio, next->prio - MAX_RT_PRIO) | ||
141 | ), | ||
142 | |||
143 | TP_printk("prev_comm=%s prev_tid=%d prev_prio=%d prev_state=%s ==> next_comm=%s next_tid=%d next_prio=%d", | ||
144 | __entry->prev_comm, __entry->prev_tid, __entry->prev_prio, | ||
145 | __entry->prev_state ? | ||
146 | __print_flags(__entry->prev_state, "|", | ||
147 | { 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" }, | ||
148 | { 16, "Z" }, { 32, "X" }, { 64, "x" }, | ||
149 | { 128, "W" }) : "R", | ||
150 | __entry->next_comm, __entry->next_tid, __entry->next_prio) | ||
151 | ) | ||
152 | |||
153 | /* | ||
154 | * Tracepoint for a task being migrated: | ||
155 | */ | ||
156 | TRACE_EVENT(sched_migrate_task, | ||
157 | |||
158 | TP_PROTO(struct task_struct *p, int dest_cpu), | ||
159 | |||
160 | TP_ARGS(p, dest_cpu), | ||
161 | |||
162 | TP_STRUCT__entry( | ||
163 | __array_text( char, comm, TASK_COMM_LEN ) | ||
164 | __field( pid_t, tid ) | ||
165 | __field( int, prio ) | ||
166 | __field( int, orig_cpu ) | ||
167 | __field( int, dest_cpu ) | ||
168 | ), | ||
169 | |||
170 | TP_fast_assign( | ||
171 | tp_memcpy(comm, p->comm, TASK_COMM_LEN) | ||
172 | tp_assign(tid, p->pid) | ||
173 | tp_assign(prio, p->prio - MAX_RT_PRIO) | ||
174 | tp_assign(orig_cpu, task_cpu(p)) | ||
175 | tp_assign(dest_cpu, dest_cpu) | ||
176 | ), | ||
177 | |||
178 | TP_printk("comm=%s tid=%d prio=%d orig_cpu=%d dest_cpu=%d", | ||
179 | __entry->comm, __entry->tid, __entry->prio, | ||
180 | __entry->orig_cpu, __entry->dest_cpu) | ||
181 | ) | ||
182 | |||
183 | DECLARE_EVENT_CLASS(sched_process_template, | ||
184 | |||
185 | TP_PROTO(struct task_struct *p), | ||
186 | |||
187 | TP_ARGS(p), | ||
188 | |||
189 | TP_STRUCT__entry( | ||
190 | __array_text( char, comm, TASK_COMM_LEN ) | ||
191 | __field( pid_t, tid ) | ||
192 | __field( int, prio ) | ||
193 | ), | ||
194 | |||
195 | TP_fast_assign( | ||
196 | tp_memcpy(comm, p->comm, TASK_COMM_LEN) | ||
197 | tp_assign(tid, p->pid) | ||
198 | tp_assign(prio, p->prio - MAX_RT_PRIO) | ||
199 | ), | ||
200 | |||
201 | TP_printk("comm=%s tid=%d prio=%d", | ||
202 | __entry->comm, __entry->tid, __entry->prio) | ||
203 | ) | ||
204 | |||
205 | /* | ||
206 | * Tracepoint for freeing a task: | ||
207 | */ | ||
208 | DEFINE_EVENT(sched_process_template, sched_process_free, | ||
209 | TP_PROTO(struct task_struct *p), | ||
210 | TP_ARGS(p)) | ||
211 | |||
212 | |||
213 | /* | ||
214 | * Tracepoint for a task exiting: | ||
215 | */ | ||
216 | DEFINE_EVENT(sched_process_template, sched_process_exit, | ||
217 | TP_PROTO(struct task_struct *p), | ||
218 | TP_ARGS(p)) | ||
219 | |||
220 | /* | ||
221 | * Tracepoint for waiting on task to unschedule: | ||
222 | */ | ||
223 | DEFINE_EVENT(sched_process_template, sched_wait_task, | ||
224 | TP_PROTO(struct task_struct *p), | ||
225 | TP_ARGS(p)) | ||
226 | |||
227 | /* | ||
228 | * Tracepoint for a waiting task: | ||
229 | */ | ||
230 | TRACE_EVENT(sched_process_wait, | ||
231 | |||
232 | TP_PROTO(struct pid *pid), | ||
233 | |||
234 | TP_ARGS(pid), | ||
235 | |||
236 | TP_STRUCT__entry( | ||
237 | __array_text( char, comm, TASK_COMM_LEN ) | ||
238 | __field( pid_t, tid ) | ||
239 | __field( int, prio ) | ||
240 | ), | ||
241 | |||
242 | TP_fast_assign( | ||
243 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | ||
244 | tp_assign(tid, pid_nr(pid)) | ||
245 | tp_assign(prio, current->prio - MAX_RT_PRIO) | ||
246 | ), | ||
247 | |||
248 | TP_printk("comm=%s tid=%d prio=%d", | ||
249 | __entry->comm, __entry->tid, __entry->prio) | ||
250 | ) | ||
251 | |||
252 | /* | ||
253 | * Tracepoint for do_fork: | ||
254 | */ | ||
255 | TRACE_EVENT(sched_process_fork, | ||
256 | |||
257 | TP_PROTO(struct task_struct *parent, struct task_struct *child), | ||
258 | |||
259 | TP_ARGS(parent, child), | ||
260 | |||
261 | TP_STRUCT__entry( | ||
262 | __array_text( char, parent_comm, TASK_COMM_LEN ) | ||
263 | __field( pid_t, parent_tid ) | ||
264 | __array_text( char, child_comm, TASK_COMM_LEN ) | ||
265 | __field( pid_t, child_tid ) | ||
266 | ), | ||
267 | |||
268 | TP_fast_assign( | ||
269 | tp_memcpy(parent_comm, parent->comm, TASK_COMM_LEN) | ||
270 | tp_assign(parent_tid, parent->pid) | ||
271 | tp_memcpy(child_comm, child->comm, TASK_COMM_LEN) | ||
272 | tp_assign(child_tid, child->pid) | ||
273 | ), | ||
274 | |||
275 | TP_printk("comm=%s tid=%d child_comm=%s child_tid=%d", | ||
276 | __entry->parent_comm, __entry->parent_tid, | ||
277 | __entry->child_comm, __entry->child_tid) | ||
278 | ) | ||
279 | |||
280 | /* | ||
281 | * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE | ||
282 | * adding sched_stat support to SCHED_FIFO/RR would be welcome. | ||
283 | */ | ||
284 | DECLARE_EVENT_CLASS(sched_stat_template, | ||
285 | |||
286 | TP_PROTO(struct task_struct *tsk, u64 delay), | ||
287 | |||
288 | TP_ARGS(tsk, delay), | ||
289 | |||
290 | TP_STRUCT__entry( | ||
291 | __array_text( char, comm, TASK_COMM_LEN ) | ||
292 | __field( pid_t, tid ) | ||
293 | __field( u64, delay ) | ||
294 | ), | ||
295 | |||
296 | TP_fast_assign( | ||
297 | tp_memcpy(comm, tsk->comm, TASK_COMM_LEN) | ||
298 | tp_assign(tid, tsk->pid) | ||
299 | tp_assign(delay, delay) | ||
300 | ) | ||
301 | TP_perf_assign( | ||
302 | __perf_count(delay) | ||
303 | ), | ||
304 | |||
305 | TP_printk("comm=%s tid=%d delay=%Lu [ns]", | ||
306 | __entry->comm, __entry->tid, | ||
307 | (unsigned long long)__entry->delay) | ||
308 | ) | ||
309 | |||
310 | |||
311 | /* | ||
312 | * Tracepoint for accounting wait time (time the task is runnable | ||
313 | * but not actually running due to scheduler contention). | ||
314 | */ | ||
315 | DEFINE_EVENT(sched_stat_template, sched_stat_wait, | ||
316 | TP_PROTO(struct task_struct *tsk, u64 delay), | ||
317 | TP_ARGS(tsk, delay)) | ||
318 | |||
319 | /* | ||
320 | * Tracepoint for accounting sleep time (time the task is not runnable, | ||
321 | * including iowait, see below). | ||
322 | */ | ||
323 | DEFINE_EVENT(sched_stat_template, sched_stat_sleep, | ||
324 | TP_PROTO(struct task_struct *tsk, u64 delay), | ||
325 | TP_ARGS(tsk, delay)) | ||
326 | |||
327 | /* | ||
328 | * Tracepoint for accounting iowait time (time the task is not runnable | ||
329 | * due to waiting on IO to complete). | ||
330 | */ | ||
331 | DEFINE_EVENT(sched_stat_template, sched_stat_iowait, | ||
332 | TP_PROTO(struct task_struct *tsk, u64 delay), | ||
333 | TP_ARGS(tsk, delay)) | ||
334 | |||
335 | /* | ||
336 | * Tracepoint for accounting runtime (time the task is executing | ||
337 | * on a CPU). | ||
338 | */ | ||
339 | TRACE_EVENT(sched_stat_runtime, | ||
340 | |||
341 | TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime), | ||
342 | |||
343 | TP_ARGS(tsk, runtime, vruntime), | ||
344 | |||
345 | TP_STRUCT__entry( | ||
346 | __array_text( char, comm, TASK_COMM_LEN ) | ||
347 | __field( pid_t, tid ) | ||
348 | __field( u64, runtime ) | ||
349 | __field( u64, vruntime ) | ||
350 | ), | ||
351 | |||
352 | TP_fast_assign( | ||
353 | tp_memcpy(comm, tsk->comm, TASK_COMM_LEN) | ||
354 | tp_assign(tid, tsk->pid) | ||
355 | tp_assign(runtime, runtime) | ||
356 | tp_assign(vruntime, vruntime) | ||
357 | ) | ||
358 | TP_perf_assign( | ||
359 | __perf_count(runtime) | ||
360 | ), | ||
361 | |||
362 | TP_printk("comm=%s tid=%d runtime=%Lu [ns] vruntime=%Lu [ns]", | ||
363 | __entry->comm, __entry->tid, | ||
364 | (unsigned long long)__entry->runtime, | ||
365 | (unsigned long long)__entry->vruntime) | ||
366 | ) | ||
367 | |||
368 | /* | ||
369 | * Tracepoint for showing priority inheritance modifying a tasks | ||
370 | * priority. | ||
371 | */ | ||
372 | TRACE_EVENT(sched_pi_setprio, | ||
373 | |||
374 | TP_PROTO(struct task_struct *tsk, int newprio), | ||
375 | |||
376 | TP_ARGS(tsk, newprio), | ||
377 | |||
378 | TP_STRUCT__entry( | ||
379 | __array_text( char, comm, TASK_COMM_LEN ) | ||
380 | __field( pid_t, tid ) | ||
381 | __field( int, oldprio ) | ||
382 | __field( int, newprio ) | ||
383 | ), | ||
384 | |||
385 | TP_fast_assign( | ||
386 | tp_memcpy(comm, tsk->comm, TASK_COMM_LEN) | ||
387 | tp_assign(tid, tsk->pid) | ||
388 | tp_assign(oldprio, tsk->prio - MAX_RT_PRIO) | ||
389 | tp_assign(newprio, newprio - MAX_RT_PRIO) | ||
390 | ), | ||
391 | |||
392 | TP_printk("comm=%s tid=%d oldprio=%d newprio=%d", | ||
393 | __entry->comm, __entry->tid, | ||
394 | __entry->oldprio, __entry->newprio) | ||
395 | ) | ||
396 | |||
397 | #endif /* _TRACE_SCHED_H */ | ||
398 | |||
399 | /* This part must be outside protection */ | ||
400 | #include "../../../probes/define_trace.h" | ||